Feed-grinding mechanism



(No Model.) I

' W. J. HARPER.

FEED GRINDING MECHANISM.

No. 549,358. Patented Nov. 5, 1895.

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' :W/TNESSES':

k ANDREW EGRAHAM.PNUTO-LIYNO.WASHINGTUN.D.O.

UNITED STATES PATENT OFFICE.

WILLIAM J. HARPER,-OF WAUSEON, OHIO.

FEED-GRINDING M ECHANISM.

SPECIFICATION forming part of Letters Patent No. 549,358, dated November 5, 1895. Application filed April 12, 1895. $erial No. 545,517. (No model.)

T0 on whom it may concern:

Be it known that I, WILLIAM J. HARPER, residing at Wauseon, in the county of Ful ton and State of Ohio, have invented a new and Improved Feed-Grinding Mechanism, of which the following is a specification.

My invention relates to an improved feedgrinding mechanism which is more especially adapted for use with and operated by a windmill; and such invention, primarily, has for its object to provide a mechanism of this character which can be readily connected with any ordinary windmill to be operated by the reciprocating movement of the pump-rod, which is of a very simple and inexpensive construction and which will effectively serve for its intended purposes.

My invention also has for its object to pro- Vide a grinding mechanism of the character stated having the movable grinding-jaws connected with the pump rod or bar in such. a manner that they will be automatically moved out of a grinding position as the said bar moves in one direction and into a grinding position when it moves to an opposite direction.

With other minor objects in view, which hereinafter will be referred to, the invention consists in such novel features of construction and peculiar combination of parts as will be first described in detail, and then be specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure 1 is a view illustrating my invention as applied for use. Fig. 2 is a vertical longitudinal section of the grinding mechanism and the windmill portion to which it is attached. Fig. 3 is a horizontal section of the same on the line 3 3 of Fig. 2. Fig. 4. is a view of a portion of the pump-rod and the swinging grinder-jaws attached thereto.

In the practical application of my invention the same is preferably used in connection with and operated by a windmill-pump rod, such application being illustrated in the drawings. I desire it understood, however, that the bar which operates the grinders may be worked by other power.

Referring to the accompanying drawings,

Aindicates the windmill-tower, B the wheel,

and O the pump-rod, all of which may be of any ordinary construction.

D D indicate a pair of horizontal timbers secured to the tower-frame A, and which are formed each of two sections d d, bolted together and formed with a recess (1 and a socket portion 01 By referring now to Fig. 2 it will be seen the pump-rod passes down through the opening of the timbers D D between a pair of movable grinder-jaws E E, which are adapted to be brought into a rubbing action with a pair of fixed grinder-jaws F F, which jaws are in the nature of two vertical metal b'ars held to seat in the socket portions (1 and provided with shoulders f, which engage the timber D and serve to hold the said bars from vertical movement. The front faces of the bars F are formed with channel-ways f, the base portions of which are corrugated or formed with the transverse grinding-teeth f*.

The movable grinders E consist each of a metal bar of a width to fit in the channelways of the bars F and formed on the outer face with corrugations or teeth e e, which are adapted to rub over the teeth on the stationary grinders E. v

The lower ends of the grindersE are joined to the bar O by the knuckle members G G, and'suchlower ends are arranged to be engaged on the up movement of the pump-rod by the stop or screw members H, adjustably held in the brackets I I, secured to the said rod 0, as shown. The upper ends of the grinders E are joined by the transverse pivoted link-bars J J, which can, if necessary, be at tached to bar 0 the same as G G.

K K indicate set-screws adjustably held in the timbers D D, which are arranged to bear against the rear face of the fixed grinders, whereby such grinders can be adjusted relatively to the movable grinders to take up wear or to produce a fine or coarse grinding action, as may be desired.

L L indicate sheet metal chute members, which are rigidly attached to the upper ends of the movable grinders, and are held for a free vertical movement in the upper extensions f 3 of the fixed grinders and to project into the vertical central guard or extension M of the hopper N,which extension has feed-openings m arranged to discharge into the chutes L L, and which have adjustable slide-valves or gate m, as most clearly shown in Fig. 2.

At a suitable point between the grinding mechanism a receiving-box (indicated by dotted lines in Fig. 2) may be held to receive the ground feedsuch as corn, oats, &e.it be= ing, however, manifest that if desired sup plemental chute devices may be connected with the said mechanism to lead the crushed material to any pointon the ground or millplatform.

The manner in which my improved grinding mechanism is operated is best explained as follows: Assuming the parts to be in the position shown in Fig. 1, when the bar C moves upward the jointed bars 9 9 will force the bars E outward in the direction indicated by the arrow to grind against the fixed grinders, to thereby effectively crush the grain on the up movement, it being manifest that by adjusting the stops H the grinding action of the said bars E on the fixed bars can be regulated as desired. As the said bar C moves downward, the ends of the bars E will, owing to the knuckle connection ith the said bar C, be drawn inward away from the grindingface of the bars E, and in consequence releases fully the ground material and permits it to flow or fall out at the lower end. The upper ends of the bars E during this time are in close proximity to the fixed bars and serve as cut-off to prevent the unground material from falling into the ground, such unground material being fed downward until the limit of stroke of rod 0 is reached, whereupon the bars E are again thrown into grinding contact with the fixed bars and the operation of grinding is repeated during the upward movement of the rod C.

If desired, a suitable lever-operated device held on the timbers D may be employed to hold. the jaws from operating when desired.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a feed grinding mechanism, the combination with the fixed jaws, of a pair of movable grinder jaws arranged oppositely between such fixed jaws, and having a link connection at their upper end, a reciprocating rod between the grinder j aws and knuckle or toggle arms pivotally connecting the lower end of the grinder bars with said rod whereby as the rod reciprocates the lower ends of the grinder bars are alternately projected and retracted laterally, as and for the purposes set forth.

2. In a feed grinding mechanism, the combination with the fixed jaws, of a pair of movable grinder jaws arranged between said fixed jaws and having a link connection at their upper end, of a vertically reciprocating rod, toggle joint connections between said rod and the lower ends of the movable jaws and chutes arranged vertically above such grinder jaws and having a rigid connection therewith, substantially as set forth.

The combination with the mill frame, the fixed grinder bars secured thereon, the hopper and the vertically reciprocating pump bar having adjustable stops H, of the movable grinding bars having a knuckle joint connection with the pump bar, link arms connecting the upper end of such grinding bars and chute members secured to the 1novable bars and projected into the hopper all arranged substantially as shown and described.

4. The combination with the mill frame, the members D, the fixed grinder bars held thereon, means for adjusting them toward each other, the hopper, and the pump bar, of the members E, the knuckle joints connecting the lower end of the said members with the pump bar, the chutes and the stops H, all arranged substantially as shown and described.

XVILLIAM J. HARPER.

\Vitnesses:

JAMEs S. BRIERLEY, E. \V. BLIZZARD. 

